Property, Plant and Equipment

12 Months Ended

Apr. 30, 2013

6.	PROPERTY, PLANT AND EQUIPMENT

Property, plant and equipment at April 30, 2013 and 2012 consists of the following:


	April 30,
	2013		2012
Land	$	20,722	$	21,100
Landfills		475,855		445,812
Landfill operating lease contracts		109,363		103,103
Buildings and improvements		133,330		121,344
Machinery and equipment		120,314		116,091
Rolling stock		128,038		125,033
Containers		80,447		73,416

		1,068,069		1,005,899
Less: accumulated depreciation and amortization		645,567		591,233

	$	422,502	$	414,666

Depreciation expense for the fiscal years ended April 30, 2013, 2012 and 2011 was $34,065, $37,829 and $35,939, respectively. Landfill amortization expense for the fiscal years ended April 30, 2013, 2012 and 2011 was $21,206, $19,957 and $21,342, respectively. Depletion expense on landfill operating lease contracts for the fiscal years ended April 30, 2013, 2012 and 2011 was $9,372, $8,482 and $7,878, respectively, and was recorded in cost of operations.

- Definition

The entire disclosure for long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. This disclosure may include property plant and equipment accounting policies and methodology, a schedule of property, plant and equipment gross, additions, deletions, transfers and other changes, depreciation, depletion and amortization expense, net, accumulated depreciation, depletion and amortization expense and useful lives, income statement disclosures, assets held for sale and public utility disclosures.

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